The liner locking, also known as liner retainer or liner thread ring, is a precision engineered component installed in the fluid end of a mud pump. Threaded directly into the fluid module, it firmly secures the liner in place, ensuring accurate alignment with the piston and stable operation under high pressure.
This component is essential for maintaining the integrity and performance of the pump during continuous drilling operations. Its sophisticated design prevents liner movement or vibration, which could otherwise lead to premature wear or fluid leakage. This product also allows for easy removal and replacement of liners during maintenance, helping minimize downtime.
| Application | Drilling mud pump fluid end |
| Working pressures | 5000 PSI (35MPa), 7500PSI (51.7MPa) |
| Temperature rating | -20°C to 120°C |
| Material | 35CrMo (Equivalent to AISI 4135 or AISI 4140) |
| Service life | 5000 hours ~ 10,000 hours or more, depending on the operating conditions and drilling conditions |
| Extended Life | With proper maintenance and regular liner replacements, the liner lock thread body can last up to 15,000 hours |
| Third party witness and inspection | Bureau Veritas (BV), CCS, ABS, SJS etc. |
Manufactured in full accordance with original drawings and directly interchangeable with the following part numbers:
| OEM Brand | Pump Models | Compatible Part Numbers |
|---|---|---|
| BOMCO | F1300/F1600/ F1600L/F1600HL | AH36001-05.18.00 / AH130101051500 |
| BOMCO | F2200HL | AH220201051200 |
| HONGHUA/HH | F1300/F1600/ F1600L/F1600HL | GH3161-05.17.00 |
| EMSCO/Mud king | FB1300/FB1600 | 6316-0367-00 |
| IDECO | T500/T800/T1000 | 551-405-05 |
| IDECO | T1300/T1600 | 551-105-03 |
| National/LSNOV | 7P50, 8P80, 9P100, 10P130, 12P160 | 1294165, 1291165, 1293165, 1290165, 1292165 |
| National/LSNOV | 10P130 / 12P160 (L shaped) | 6495+6595 / 6476+6576 |
* All product names, trademarks, and part numbers are used for identification purposes only and are the property of their respective owners.
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